[v4,2/2] gpu/drm/panel: Add Sony TD4353 JDI panel driver

From: Konrad Dybcio <konrad.dybcio@somainline.org>

Add support for the Sony TD4353 JDI 2160x1080 display panel used in
some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
of smartphone manufacturing, it is impossible to retrieve a better name
for this panel.

This revision adds support for the default 60 Hz configuration, however
there could possibly be some room for expansion, as the display panels
used on Sony devices have historically been capable of >2x refresh rate
overclocking.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
---
v3 -> v4:
- De-magicize some numbers
- Pick up rb
 drivers/gpu/drm/panel/Kconfig                 |  10 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c | 329 ++++++++++++++++++
 3 files changed, 340 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c

On Thu, 16 Feb 2023 at 12:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 19.01.2023 17:32, Konrad Dybcio wrote:
> > From: Konrad Dybcio <konrad.dybcio@somainline.org>
> >
> > Add support for the Sony TD4353 JDI 2160x1080 display panel used in
> > some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
> > of smartphone manufacturing, it is impossible to retrieve a better name
> > for this panel.
> >
> > This revision adds support for the default 60 Hz configuration, however
> > there could possibly be some room for expansion, as the display panels
> > used on Sony devices have historically been capable of >2x refresh rate
> > overclocking.
> >
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
> > ---
> Are there any outstanding issues with this driver, or perhaps I did
> not CC some important list? It has gotten very little activity ever
> since its initial submission around Sept'22..

Sam is usually picking up panel drivers these days, but maybe we need
a bit more help in this area? If anyone from linaro has a handful of
drm patches landed in upstream they could apply for drm-misc commit
rights and help push these. I think linaro has lost a few of the
drm-misc committers so things tend to be stuck a bit more :-/
-Daniel

>
> Konrad
> > v3 -> v4:
> > - De-magicize some numbers
> > - Pick up rb
> >  drivers/gpu/drm/panel/Kconfig                 |  10 +
> >  drivers/gpu/drm/panel/Makefile                |   1 +
> >  drivers/gpu/drm/panel/panel-sony-td4353-jdi.c | 329 ++++++++++++++++++
> >  3 files changed, 340 insertions(+)
> >  create mode 100644 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> >
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index d03a64155d15..8da741f1c2ba 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -677,6 +677,16 @@ config DRM_PANEL_SONY_ACX565AKM
> >         Say Y here if you want to enable support for the Sony ACX565AKM
> >         800x600 3.5" panel (found on the Nokia N900).
> >
> > +config DRM_PANEL_SONY_TD4353_JDI
> > +     tristate "Sony TD4353 JDI panel"
> > +     depends on GPIOLIB && OF
> > +     depends on DRM_MIPI_DSI
> > +     depends on BACKLIGHT_CLASS_DEVICE
> > +     help
> > +       Say Y here if you want to enable support for the Sony Tama
> > +       TD4353 JDI command mode panel as found on some Sony Xperia
> > +       XZ2 and XZ2 Compact smartphones.
> > +
> >  config DRM_PANEL_SONY_TULIP_TRULY_NT35521
> >       tristate "Sony Tulip Truly NT35521 panel"
> >       depends on GPIOLIB && OF
> > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> > index 1630dd0c69ae..22155d62bec0 100644
> > --- a/drivers/gpu/drm/panel/Makefile
> > +++ b/drivers/gpu/drm/panel/Makefile
> > @@ -68,6 +68,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
> >  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
> >  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
> >  obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
> > +obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
> >  obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o
> >  obj-$(CONFIG_DRM_PANEL_SONY_SYNAPTICS_JDI) += panel-sony-synaptics-jdi.o
> >  obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
> > diff --git a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> > new file mode 100644
> > index 000000000000..8d8813dbaa45
> > --- /dev/null
> > +++ b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> > @@ -0,0 +1,329 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Copyright (c) 2022 Konrad Dybcio <konrad.dybcio@somainline.org>
> > + *
> > + * Generated with linux-mdss-dsi-panel-driver-generator with a
> > + * substantial amount of manual adjustments.
> > + *
> > + * SONY Downstream kernel calls this one:
> > + * - "JDI ID3" for Akari  (XZ2)
> > + * - "JDI ID4" for Apollo (XZ2 Compact)
> > + */
> > +
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/of_device.h>
> > +#include <linux/regulator/consumer.h>
> > +
> > +#include <video/mipi_display.h>
> > +
> > +#include <drm/drm_mipi_dsi.h>
> > +#include <drm/drm_modes.h>
> > +#include <drm/drm_panel.h>
> > +
> > +enum {
> > +     TYPE_TAMA_60HZ,
> > +     /*
> > +      * Leaving room for expansion - SONY very often uses
> > +      * *truly reliably* overclockable panels on their flagships!
> > +      */
> > +};
> > +
> > +struct sony_td4353_jdi {
> > +     struct drm_panel panel;
> > +     struct mipi_dsi_device *dsi;
> > +     struct regulator_bulk_data supplies[3];
> > +     struct gpio_desc *panel_reset_gpio;
> > +     struct gpio_desc *touch_reset_gpio;
> > +     bool prepared;
> > +     int type;
> > +};
> > +
> > +static inline struct sony_td4353_jdi *to_sony_td4353_jdi(struct drm_panel *panel)
> > +{
> > +     return container_of(panel, struct sony_td4353_jdi, panel);
> > +}
> > +
> > +static int sony_td4353_jdi_on(struct sony_td4353_jdi *ctx)
> > +{
> > +     struct mipi_dsi_device *dsi = ctx->dsi;
> > +     struct device *dev = &dsi->dev;
> > +     int ret;
> > +
> > +     dsi->mode_flags |= MIPI_DSI_MODE_LPM;
> > +
> > +     ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set column address: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set page address: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set tear scanline: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set tear on: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
> > +
> > +     ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set pixel format: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PARTIAL_ROWS,
> > +                       0x00, 0x00, 0x08, 0x6f);
> > +
> > +     ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
> > +             return ret;
> > +     }
> > +     msleep(70);
> > +
> > +     mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
> > +
> > +     ret = mipi_dsi_dcs_set_display_on(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to turn display on: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     return 0;
> > +}
> > +
> > +static int sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
> > +{
> > +     struct mipi_dsi_device *dsi = ctx->dsi;
> > +     struct device *dev = &dsi->dev;
> > +     int ret;
> > +
> > +     dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
> > +
> > +     ret = mipi_dsi_dcs_set_display_off(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set display off: %d\n", ret);
> > +             return ret;
> > +     }
> > +     msleep(22);
> > +
> > +     ret = mipi_dsi_dcs_set_tear_off(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to set tear off: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
> > +             return ret;
> > +     }
> > +     msleep(80);
> > +
> > +     return 0;
> > +}
> > +
> > +static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode)
> > +{
> > +     gpiod_set_value_cansleep(ctx->touch_reset_gpio, mode);
> > +     gpiod_set_value_cansleep(ctx->panel_reset_gpio, mode);
> > +     usleep_range(5000, 5100);
> > +}
> > +
> > +static int sony_td4353_jdi_prepare(struct drm_panel *panel)
> > +{
> > +     struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > +     struct device *dev = &ctx->dsi->dev;
> > +     int ret;
> > +
> > +     if (ctx->prepared)
> > +             return 0;
> > +
> > +     ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to enable regulators: %d\n", ret);
> > +             return ret;
> > +     }
> > +
> > +     msleep(100);
> > +
> > +     sony_td4353_assert_reset_gpios(ctx, 1);
> > +
> > +     ret = sony_td4353_jdi_on(ctx);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to power on panel: %d\n", ret);
> > +             sony_td4353_assert_reset_gpios(ctx, 0);
> > +             regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > +             return ret;
> > +     }
> > +
> > +     ctx->prepared = true;
> > +     return 0;
> > +}
> > +
> > +static int sony_td4353_jdi_unprepare(struct drm_panel *panel)
> > +{
> > +     struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > +     struct device *dev = &ctx->dsi->dev;
> > +     int ret;
> > +
> > +     if (!ctx->prepared)
> > +             return 0;
> > +
> > +     ret = sony_td4353_jdi_off(ctx);
> > +     if (ret < 0)
> > +             dev_err(dev, "Failed to power off panel: %d\n", ret);
> > +
> > +     sony_td4353_assert_reset_gpios(ctx, 0);
> > +     regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > +
> > +     ctx->prepared = false;
> > +     return 0;
> > +}
> > +
> > +static const struct drm_display_mode sony_td4353_jdi_mode_tama_60hz = {
> > +     .clock = (1080 + 4 + 8 + 8) * (2160 + 259 + 8 + 8) * 60 / 1000,
> > +     .hdisplay = 1080,
> > +     .hsync_start = 1080 + 4,
> > +     .hsync_end = 1080 + 4 + 8,
> > +     .htotal = 1080 + 4 + 8 + 8,
> > +     .vdisplay = 2160,
> > +     .vsync_start = 2160 + 259,
> > +     .vsync_end = 2160 + 259 + 8,
> > +     .vtotal = 2160 + 259 + 8 + 8,
> > +     .width_mm = 64,
> > +     .height_mm = 128,
> > +};
> > +
> > +static int sony_td4353_jdi_get_modes(struct drm_panel *panel,
> > +                                struct drm_connector *connector)
> > +{
> > +     struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > +     struct drm_display_mode *mode = NULL;
> > +
> > +     if (ctx->type == TYPE_TAMA_60HZ)
> > +             mode = drm_mode_duplicate(connector->dev, &sony_td4353_jdi_mode_tama_60hz);
> > +     else
> > +             return -EINVAL;
> > +
> > +     if (!mode)
> > +             return -ENOMEM;
> > +
> > +     drm_mode_set_name(mode);
> > +
> > +     mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> > +     connector->display_info.width_mm = mode->width_mm;
> > +     connector->display_info.height_mm = mode->height_mm;
> > +     drm_mode_probed_add(connector, mode);
> > +
> > +     return 1;
> > +}
> > +
> > +static const struct drm_panel_funcs sony_td4353_jdi_panel_funcs = {
> > +     .prepare = sony_td4353_jdi_prepare,
> > +     .unprepare = sony_td4353_jdi_unprepare,
> > +     .get_modes = sony_td4353_jdi_get_modes,
> > +};
> > +
> > +static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
> > +{
> > +     struct device *dev = &dsi->dev;
> > +     struct sony_td4353_jdi *ctx;
> > +     int ret;
> > +
> > +     ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
> > +     if (!ctx)
> > +             return -ENOMEM;
> > +
> > +     ctx->type = (uintptr_t)of_device_get_match_data(dev);
> > +
> > +     ctx->supplies[0].supply = "vddio";
> > +     ctx->supplies[1].supply = "vsp";
> > +     ctx->supplies[2].supply = "vsn";
> > +     ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
> > +                                   ctx->supplies);
> > +     if (ret < 0)
> > +             return dev_err_probe(dev, ret, "Failed to get regulators\n");
> > +
> > +     ctx->panel_reset_gpio = devm_gpiod_get(dev, "panel-reset", GPIOD_ASIS);
> > +     if (IS_ERR(ctx->panel_reset_gpio))
> > +             return dev_err_probe(dev, PTR_ERR(ctx->panel_reset_gpio),
> > +                                  "Failed to get panel-reset-gpios\n");
> > +
> > +     ctx->touch_reset_gpio = devm_gpiod_get(dev, "touch-reset", GPIOD_ASIS);
> > +     if (IS_ERR(ctx->touch_reset_gpio))
> > +             return dev_err_probe(dev, PTR_ERR(ctx->touch_reset_gpio),
> > +                                  "Failed to get touch-reset-gpios\n");
> > +
> > +     ctx->dsi = dsi;
> > +     mipi_dsi_set_drvdata(dsi, ctx);
> > +
> > +     dsi->lanes = 4;
> > +     dsi->format = MIPI_DSI_FMT_RGB888;
> > +     dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
> > +
> > +     drm_panel_init(&ctx->panel, dev, &sony_td4353_jdi_panel_funcs,
> > +                    DRM_MODE_CONNECTOR_DSI);
> > +
> > +     ret = drm_panel_of_backlight(&ctx->panel);
> > +     if (ret)
> > +             return dev_err_probe(dev, ret, "Failed to get backlight\n");
> > +
> > +     drm_panel_add(&ctx->panel);
> > +
> > +     ret = mipi_dsi_attach(dsi);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
> > +             drm_panel_remove(&ctx->panel);
> > +             return ret;
> > +     }
> > +
> > +     return 0;
> > +}
> > +
> > +static void sony_td4353_jdi_remove(struct mipi_dsi_device *dsi)
> > +{
> > +     struct sony_td4353_jdi *ctx = mipi_dsi_get_drvdata(dsi);
> > +     int ret;
> > +
> > +     ret = mipi_dsi_detach(dsi);
> > +     if (ret < 0)
> > +             dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
> > +
> > +     drm_panel_remove(&ctx->panel);
> > +}
> > +
> > +static const struct of_device_id sony_td4353_jdi_of_match[] = {
> > +     { .compatible = "sony,td4353-jdi-tama", .data = (void *)TYPE_TAMA_60HZ },
> > +     { /* sentinel */ }
> > +};
> > +MODULE_DEVICE_TABLE(of, sony_td4353_jdi_of_match);
> > +
> > +static struct mipi_dsi_driver sony_td4353_jdi_driver = {
> > +     .probe = sony_td4353_jdi_probe,
> > +     .remove = sony_td4353_jdi_remove,
> > +     .driver = {
> > +             .name = "panel-sony-td4353-jdi",
> > +             .of_match_table = sony_td4353_jdi_of_match,
> > +     },
> > +};
> > +module_mipi_dsi_driver(sony_td4353_jdi_driver);
> > +
> > +MODULE_AUTHOR("Konrad Dybcio <konrad.dybcio@somainline.org>");
> > +MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
> > +MODULE_LICENSE("GPL");

On Thu, Feb 16, 2023 at 01:49:23PM +0100, Daniel Vetter wrote:
> On Thu, 16 Feb 2023 at 13:47, Neil Armstrong <neil.armstrong@linaro.org> wrote:
> >
> > On 16/02/2023 13:32, Daniel Vetter wrote:
> > > On Thu, 16 Feb 2023 at 12:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
> > >>
> > >>
> > >>
> > >> On 19.01.2023 17:32, Konrad Dybcio wrote:
> > >>> From: Konrad Dybcio <konrad.dybcio@somainline.org>
> > >>>
> > >>> Add support for the Sony TD4353 JDI 2160x1080 display panel used in
> > >>> some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
> > >>> of smartphone manufacturing, it is impossible to retrieve a better name
> > >>> for this panel.
> > >>>
> > >>> This revision adds support for the default 60 Hz configuration, however
> > >>> there could possibly be some room for expansion, as the display panels
> > >>> used on Sony devices have historically been capable of >2x refresh rate
> > >>> overclocking.
> > >>>
> > >>> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> > >>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > >>> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
> > >>> ---
> > >> Are there any outstanding issues with this driver, or perhaps I did
> > >> not CC some important list? It has gotten very little activity ever
> > >> since its initial submission around Sept'22..
> > >
> > > Sam is usually picking up panel drivers these days, but maybe we need
> > > a bit more help in this area? If anyone from linaro has a handful of
> > > drm patches landed in upstream they could apply for drm-misc commit
> > > rights and help push these. I think linaro has lost a few of the
> > > drm-misc committers so things tend to be stuck a bit more :-/
> >
> > I usually wait for Sam to comment before applying my panel patches drivers to drm-misc-next,
> > but yeah panels would need some more help...
> >
> > If needed I can add myself to the panel drivers maintainance aswell.
> 
> I think that would be great, maybe just send out the MAINTAINERS patch
> and ask Sam to ack?

That would be great, and I am more than happy to ack it.
According to MAINTAINERS Thierry is the panel maintainer and I am reviewer.
So you should ask Thierry to ack it too.

	Sam

On Thu, Feb 16, 2023 at 09:37:51PM +0100, Sam Ravnborg wrote:
> On Thu, Feb 16, 2023 at 01:49:23PM +0100, Daniel Vetter wrote:
> > On Thu, 16 Feb 2023 at 13:47, Neil Armstrong <neil.armstrong@linaro.org> wrote:
> > >
> > > On 16/02/2023 13:32, Daniel Vetter wrote:
> > > > On Thu, 16 Feb 2023 at 12:59, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
> > > >>
> > > >>
> > > >>
> > > >> On 19.01.2023 17:32, Konrad Dybcio wrote:
> > > >>> From: Konrad Dybcio <konrad.dybcio@somainline.org>
> > > >>>
> > > >>> Add support for the Sony TD4353 JDI 2160x1080 display panel used in
> > > >>> some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
> > > >>> of smartphone manufacturing, it is impossible to retrieve a better name
> > > >>> for this panel.
> > > >>>
> > > >>> This revision adds support for the default 60 Hz configuration, however
> > > >>> there could possibly be some room for expansion, as the display panels
> > > >>> used on Sony devices have historically been capable of >2x refresh rate
> > > >>> overclocking.
> > > >>>
> > > >>> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> > > >>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > > >>> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
> > > >>> ---
> > > >> Are there any outstanding issues with this driver, or perhaps I did
> > > >> not CC some important list? It has gotten very little activity ever
> > > >> since its initial submission around Sept'22..
> > > >
> > > > Sam is usually picking up panel drivers these days, but maybe we need
> > > > a bit more help in this area? If anyone from linaro has a handful of
> > > > drm patches landed in upstream they could apply for drm-misc commit
> > > > rights and help push these. I think linaro has lost a few of the
> > > > drm-misc committers so things tend to be stuck a bit more :-/
> > >
> > > I usually wait for Sam to comment before applying my panel patches drivers to drm-misc-next,
> > > but yeah panels would need some more help...
> > >
> > > If needed I can add myself to the panel drivers maintainance aswell.
> > 
> > I think that would be great, maybe just send out the MAINTAINERS patch
> > and ask Sam to ack?
> 
> That would be great, and I am more than happy to ack it.
> According to MAINTAINERS Thierry is the panel maintainer and I am reviewer.
> So you should ask Thierry to ack it too.

Tbh with the commit right model the difference between reviewer/maintainer
is kinda not there, and I think Thierry's entry simply goes back to the
time drm-panel was still a separate git tree. But yeah more acks doesn't
hurt.
-Daniel

On Thu, Jan 19, 2023 at 5:32 PM Konrad Dybcio <konrad.dybcio@linaro.org> wrote:

> From: Konrad Dybcio <konrad.dybcio@somainline.org>
>
> Add support for the Sony TD4353 JDI 2160x1080 display panel used in
> some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
> of smartphone manufacturing, it is impossible to retrieve a better name
> for this panel.
>
> This revision adds support for the default 60 Hz configuration, however
> there could possibly be some room for expansion, as the display panels
> used on Sony devices have historically been capable of >2x refresh rate
> overclocking.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>

Looks good, so patch applied to drm-misc-next.

Yours,
Linus Walleij